Hello friends . What is critical angle and what is TIR?
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Hello friends . What is critical angle and what is TIR?
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Total internal reflection takes place when the angle of incidence for the light ray is greater than the so-called critical angle.
TIR stands for "Transports Internationaux Routiers" or "International Road Transports".) The 1975 convention replaced the TIR Convention of 1959, which itself replaced the 1949 TIR Agreement between a number of European countries